TG585v7 - Installing Plusnet firmware

If I install the Plusnet branded version 8.2.6.5 which I can download from their web site:

a) Will I loose any capability?
b) Can I re-install 7.4.4.7?
c) Will the router be locked to Plusnet in any way?
d) Is there any other reason why I might regret doing this?

My main reason for applying the upgrade is that the router occasionally starts to refuse (or continue to allow) wired connections, and has to be rebooted.
Sadly I can't find any suitaboe firmware on the Thomson/Technicolor web site.

Re: TG585v7 - Installing Plusnet firmware

Well I have now installed it and it works fine. Many thanks for your help.
The Windows 7 upgrade wizard which I took from the Plusnet site, makes the upgrade very easy. All my main settings have been retained, the only details that have been lost are the names that I give to the various devices attached to my network.

Re: TG585v7 - Installing Plusnet firmware

Where abouts on Plusnet's website is this firmware posted? Wouldnt mind giving it a crack. My 585v7 seems to have a nasty habit of losing all it's config if powered off for any length of time :/ Yes I know.. they're designed to be kept on but even so..